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fyi - some of the early stage 2 ecu's had the stage 1 stickers on them, so that's not always the best way to tell. the tell tale sign is the map sensor, it will say 3 bar. you cannot run a stage 2 ecu without the sensors.
ok i looked at the sensor on the intake manifold.. it said 3993 i belive... anyone have pictures? i might be looking at the wrong sensor... on the ecu i couldnt really read it. but it said software upgrade......
i dont know if i was looking at the right sensor...it looks to be the only sensor on the intake manifold.. i does not say bar anywere on it??hmm im confused...were would it say bar on it? thanks matt
see that sensor sitting right in the front below the injector cover? that's the map sensor. look at it. it will say 3 bar on it if s2 is in the car. it won't if s2 isn't there.